Removable rake-tooth.



H. V. SMITH. BBMovABL'B BAKE TOOTH.

APPLIGATIOI FILED 0V'.9,1908.

Patented July 6, 1909.

/' 2/ 20 /9 W- .y f@

0 A9 WJTNESSES.- [NVE/WOR HMM/f l/Smfrf",

B Y l l f /r -ffamey m. n. @Hall e0. m wml-nc.

UNITED PATENT OFFICE.

`HARLEY V. SMITH, OF SYKESTON, NORTH DAKOTA.

REMOVABLE RAKE-TOOTH.

To all whom it may concern:

Be it known that l, HARLEY V. SMITH, citizen of the United States,residing at Sykeston, county of lells, and State of North Dakota, haveinvented certain new and useful Improvements in Removable Rake-Teeth, ofwhich the following is a specification, reference being had therein tothe accompanying drawing.

This invention relates to a removable rake tooth, and particularly to astructure adapted for horse ralres.

The invention has for an object to provide means by which each of theteeth may be removed from the rake head, and normally held therein by aspring held latch pin which can be withdrawn for the removal of a tooth.

Other and further objects and advantages of the invention will behereinafter fully set forth and the novel features thereof defined hythe appended claims.

ln the drawing :H'Figure 1 is a perspective view showing the applicationof the invention; Eig. 2 is a section on line 22, Fig. 1; Fig. 3 is ahorizontal section on line 3-3, Fig. 1.

Like numerals refer to like parts in the several views of the drawing.

The numeral 1() designates the rake head which may be of any desiredconstruction or configuration, and 11 the rake tooth thereof which maylikewise be formed to the requirements of use. This tooth is providedwith an eye or pivot 12 at one end, as shown in Fig. 2 and adapted to bedisposed within the bearing block 13 which is pro vided with avertically disposed slot 14 to permit the oscillation or verticalmovement of the tooth contingent upon the conformation of the groundwith which it contacts. This tooth is retained in position by a latch orpivot pin 15 having a head 1G and eX tended through a proper recess inthe block 13 so as to intersect or traverse the opening 14 in which therake tooth is introduced and pass through the eye 12 thereof so as toretain. the tooth in operative position and permit the proper movementthereof. This pin is normally retained in position by means of thespring latch oll any desired construction, for instance, a bolt 17disposed in the recess 18 in the block and provided with the spring 19which normally holds the head 20 of the bolt in contact with the circum-Specification of Letters Patent.

Application filed November 9, 1908.

Patented July 6, 1909.

Serial No. 461,793.

' ferential recess or channel 21 upon the pin 15 and thereby preventsthe accidental displacement or withdrawal ol' the pin and holds it inproper retaining position until positively released for the removal ofthe rake tooth when injured or replacement thereof is desired.

ln the operation of the invention it will be seen that each tooth oi'the rake is individually held in position for removal or replacementwithout disturbing the remaining teeth by means of the bolt, and thisbolt is positively locked and held by the latch until it is desired toremove the same so that the rake may be supplied with teeth of dierentcharacters as desired, or those therein which may be damaged readilyreplaced. lt will also be observed that the pivot block permits avertical oscillation of the tooth upon its pivoting eye so that it mayconform to inequalities in the ground without offering resistance to thehead or causing injury to the free end of the tooth which travels uponthe ground to perform the raking function in the usual manner. It willtherefore be seen that the invention presents a simple, efficient andeconomically constructed device to retain the rake teeth in position toaccomplish the most efficient operation.

Having described my invention and set forth its merits, what l claim anddesire to secure by Letters Patent is 1. The combination with a rakehead provided with a ivoting block, of a tooth pivoted in said block, apin forming a ivot for said tooth, and a spring pressed .olt dis posedlaterally of said pin to engage and retain it in position.

2. The combination with a rake head provided with a pivoting block, of atooth pivoted in said block, a pin having a recess and forming a pivotfor said tooth, and a spring pressed bolt engaging the recess in saidpin to prevent its removal from said block.

3. The combination with a ralre head provided with a pivoting block, ofa tooth pivoted in said block, a pin having a recess and forming a pivotfor said tooth, a spring pressed bolt engaging the recess in said pin toprevent its removal from said block, a head upon said pin, and awithdrawing extension upon said bolt by which it may be relieved fromcontact with said pin.

4. The combination with a rake head, of a tooth bearing thereon having avertically disposed slot therein, t tooth having a pivoting eye disposedWithin said bearing, a pin provided with a circumferential groove anddisposed in said bearing to pass through said eye, and a spring pressed.bolt disposed in said bearing to engage said groove and having anextended operating end for releasing said pin.

In testimony whereof I zLHiX my signature 1n presence oi two Witnesses.

HARLEY V. SMITH.

Witnesses:

LIZZIE I-IAssE, ELLA M. JOURMEL.

